Computer 9th Chap 3 : Topic 5.2 - Maryam Publications

Computer Chapter 3 : Topic 5.2

Code written inside a function can be tested

1 / 8

A student places a block of JavaScript code inside a function instead of writing it in the global scope. What is the main advantage of this approach for testing purposes?

A) It converts code into HTML format

B) It automatically deletes runtime errors

C) It allows the code to be tested independently by calling the function

D) It prevents the browser from running the code

2 / 8

Why is code written inside a JavaScript function easier to debug compared to code written outside functions?

A) It cannot produce errors

B) It can be tested in isolation without affecting other program parts

C) It always executes faster

D) It does not require variables

3 / 8

A programmer creates a function named testLogic() and places a calculation inside it. What is required to actually test the code inside the function?

A) Calling the function explicitly

B) Moving it outside the script

C) Deleting the function

D) Converting it into HTML

4 / 8

Which debugging benefit is gained when JavaScript code is written inside functions rather than in a single global script?

A) Code becomes unchangeable

B) Errors disappear automatically

C) Variables become global automatically

D) Individual parts can be executed separately

5 / 8

A student writes multiple functions for different tasks such as adding numbers and checking conditions. How does this structure help in debugging?

A) It makes code longer and harder to understand

B) It prevents execution of loops

C) It removes the need for variables

D) Each function can be tested and debugged independently

6 / 8

What happens if a function contains an error in JavaScript but is never called during program execution?

A) The program automatically fixes it

B) The error will not appear until the function is executed

C) The error will always crash the browser

D) The error is converted into a warning only

7 / 8

A teacher advises students to wrap code inside functions during development. What is the main educational purpose of this advice?

A) To increase file size

B) To prevent use of loops

C) To force use of global variables

D) To improve modular testing and debugging skills

8 / 8

In JavaScript, a student repeatedly tests a function by changing its input values and observing outputs. Which debugging technique is being used?

A) Unit testing through function calls

B) Random execution testing

C) HTML validation

D) Code compilation analysis

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